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faulty urine test?
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An_254863 posted:
I am in a substance abuse program at my local hospital. I was given a urine test and tested positive for marijuana with 120ng and then a week later i was tested again and was negative. This obviously concerned my counselors so they went ahead and gave me another test today another week after the negative test. It was positve. I am now being accused of altering my urine somehow with a drink that would clear my system. I did no such thing. Is there anything else that would cause this? any specific foods or other beverages?
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Betty Ford Center
Harry L Haroutunian, MD responded:
Certain drugs are stored in the body fat. For some period of time - two to four weeks after the last usage - these drugs may show up in varying quantities in the urine. In my experience, it has not been uncommon to see a steadily declining drug level mixed with an occasional negative specimen.



The important thing is: are the values of the positive test continuing to decrease? You may want to call the laboratory that they use to test and have this confirmed by their chief chemist.


Good luck.



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